Trent 970B-84

Turbofan · Rolls-Royce

Reaction Turbines

Maximum Takeoff Thrust

352.9 kN

Bypass Ratio

8.38

Overall Pressure Ratio

39.35

Fuel Flow Take Off

2.738 kg/s

NOx Unitaryto CAEP8

81.1 % of limit

Architecture

Fan	Fan Stages —	Fan Blades —	Fan Technology —	Fan Pressure Ratio —
Gearbox	Geared Fan No	Gear —	Reduction Ratio —
LP compressor	Low-Pressure Compressor Stages —	Low-Pressure Compressor Technology —	BP Compressor Pressure Ratio —
IP compressor	Intermediary-Pressure Compressor Stages —	Intermediary-Pressure Compressor Technology —	IP Compressor Pressure Ratio —
HP compressor	High-Pressure Compressor Stages —	High-Pressure Compressor Technology —	HP Compressor Pressure Ratio —
Combustor	Combustion Chamber Phase5 Tiled
HP turbine	High Pressure Compressor Stages —	High-Pressure Turbine Technology —
IP turbine	Intermediary-Pressure Turbine Stages —	Intermediary-Pressure Turbine Technology —
LP turbine	Low-Pressure Turbine Stages —	Low-Pressure Turbine Technology —
Whole engine	Streams 2	Bypass Ratio 8.38	Overall Pressure Ratio 39.35	Afterburner No

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Name	Aircraft Engine Manufacturer	Maximum Takeoff Thrust (kN)	Bypass Ratio	Overall Pressure Ratio
GE90-76B	GE Aircraft Engines	354.32	8.6	35.45	Compare
Trent 972-84	Rolls-Royce	345.9	8.41	38.68	Compare
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All data (63 fields)

Name: Trent 970B-84
EASA ID: 18RR082
Aircraft Engine Manufacturer: Rolls-Royce
Aircraft Engine Type: Turbofan
Geared Fan: No
Combustion Chamber: Phase5 Tiled
Afterburner: No
Streams: 2
Bypass Ratio: 8.38
Overall Pressure Ratio: 39.35
Maximum Takeoff Thrust (kN): 352.9
Hydrocarbon Take Off (g/kg fuel): 0
Hydrocarbon Climb Out (g/kg fuel): 0.09
Hydrocarbon Approach (g/kg fuel): 0.07
Hydrocarbon Idle (g/kg fuel): 0.04
Hydrocarbon Unitary Average (g/kN): 0.16
Hydrocarbon Unitary Sigma (g/kN): 0.05
Hydrocarbon Unitary Range (g/kN): 0.13-0.21
Hydrocarbon Unitary Characteristic (g/kN): 0.18
Hydrocarbon Unitary Characteristicto Regulatory (% of limit): 0.9
Hydrocarbon LTO (g): 56
Carbon Monoxide Take Off (g/kg fuel): 0.33
Carbon Monoxide Climb Out (g/kg fuel): 0.31
Carbon Monoxide Approach (g/kg fuel): 1.05
Carbon Monoxide Idle (g/kg fuel): 12.65
Carbon Monoxide Unitary Average (g/kN): 15.5
Carbon Monoxide Unitary SD (g/kN): 1.63
Carbon Monoxide Unitary Range (g/kN): 14.13-17.3
Carbon Monoxide Unitary Characteristic (g/kN): 16.77
Carbon Monoxide Unitary Characteristicto Regulatory (% of limit): 14.2
NOx Take Off (g/kg fuel): 41.34
NOx Climb Out (g/kg fuel): 31.3
NOx Approach (g/kg fuel): 12.37
NOx Idle (g/kg fuel): 5.57
NOx Unitary Average (g/kN): 52.68
NOx Unitary SD (g/kN): 1.94
NOx Unitary Range (g/kN): 50.92-54.77
NOx Unitary Characteristic (g/kN): 55.8
NOx Unitaryto Standard (% of limit): 47
NOx Unitaryto CAEP2 (% of limit): 58.8
NOx Unitaryto CAEP4 (% of limit): 65.1
NOx Unitaryto CAEP6 (% of limit): 71.9
NOx Unitaryto CAEP8 (% of limit): 81.1
NOx LTO (g): 18591
Smoke Take Off (SN): 6.1
Smoke Climb Out (SN): 6.3
Smoke Approach (SN): 3.3
Smoke Idle (SN): 0.6
Smoke Max (SN): 7.1
Smoke Sigma (SN): 2.7
Smoke Range (SN): 5.2-9
Smoke Characteristic (SN): 8.3
Smoke Characteristicto Regulatory (% of limit): 49.7
Fuel Flow Take Off (kg/s): 2.738
Fuel Flow Climbout (kg/s): 2.262
Fuel Flow Approach (kg/s): 0.749
Fuel Flow Idle (kg/s): 0.261
Fuel LTO (kg): 1001
Fuel Venting Compliant: Yes
Carbon Monoxide LTO (g): 5471
Emissions Data Status: C
Engine Status: Out of service
NOx Compliance Demonstration: 2.3.2 e)